First, the good news about “The Unbreakable Boy,” a family drama based on the memoir by Scott LaRette: Star Zachary Levi is acting his age. After a few high-profile childlike roles in the past few years in the “Shazam” movies,

This family drama by Jon Gunn, based on a true story, is told from the perspective of a young boy with autism.

With a few solid performances against a plain script, The Unbreakable Boy is a cute, albeit simple, movie that families will love.

The real struggle here is trying to connect with this film beyond a wan appreciation that a father finally learned how to love his son for who he is.